The Big Bang Theory (2007–2019)
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The Santa Simulation 

The girls take Raj out to a nightclub to find him a date. A game of Dungeons and Dragons rekindle old memories of Santa for Sheldon.


Mark Cendrowski


Chuck Lorre (created by), Bill Prady (created by) | 7 more credits »

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Episode complete credited cast:
Johnny Galecki ... Leonard Hofstadter
Jim Parsons ... Sheldon Cooper
Kaley Cuoco ... Penny
Simon Helberg ... Howard Wolowitz
Kunal Nayyar ... Raj Koothrappali
Mayim Bialik ... Amy Farrah Fowler
Melissa Rauch ... Bernadette Rostenkowski
Kevin Sussman ... Stuart Bloom
Dakin Matthews ... Santa


Much to Penny, Bernadette and Amy's chagrin, Leonard organizes a boys only Saturday night get together for himself, Sheldon, Howard, Raj and Stuart to play a holiday themed version of Dungeons and Dragons. The game is ultimately affected by a careless move by Raj for his love of Santa, and a calculated move by Sheldon in his disdain for the holidays. In retaliation for Leonard organizing this night, Penny organizes her own Saturday girls night out with her, Bernadette and Amy in their most provocative of clubbing outfits. Their club night out is affected by an unexpected fourth guest, who ends up being their focus for the night, and information about who in relation to the three comes to light. Written by Huggo

Plot Summary | Plot Synopsis


Comedy | Romance


TV-14 | See all certifications »






Release Date:

13 December 2012 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


This Christmas episode has the most Christmas themes in the entire series up to this point. See more »


Sheldon repeats the second verse of the first stanza when singing "Good King Wenceslas." (The line "Brightly shown the moon that night" is sung twice.) See more »


[first lines]
Penny: [reading directions] OK now, holding sides of hearth in position, lower mantelpiece assembly onto top tabs.
Leonard Hofstadter: I consider I built a fireplace with my own two hands.
Penny: You're so butch.
Leonard Hofstadter: Oh, I got a little paper cut.
Penny: Of course you did; your hands are softer than veal.
Leonard Hofstadter: Oh, uh, before I forget: Saturday I'm planning a little Dungeons and Dragons night with the guys.
Penny: Really! That's how you're going to spend your Saturday night?
Leonard Hofstadter: Come on, I hardly ever get a chance to play any more.
Penny: Oh you poor ...
See more »

Crazy Credits

CHUCK LORRE PRODUCTIONS, #402 I danced as if no one was watching... and now I regret it. Happy Holidays from Chuck Lorre. [photograph of Chuck Lorre in dance costume with ballet dancers] See more »


References Slumdog Millionaire (2008) See more »


History of Everything (Instrumental version)
Written by Barenaked Ladies
Performed by Barenaked Ladies
[Instrumental version of series theme song played over the closing credits]
See more »

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User Reviews

"The Santa Simulation" was a great holiday ep of "The Big Bang Theory"
26 December 2012 | by tavmSee all my reviews

In this Christmas ep of "The Big Bang Theory": It's Dungeons & Dragons night so Amy-who wanted to come but wasn't invited, Bernedette-who wanted Howard to spend that night with her, and Penny-ditto with Leonard, are by themselves but Stuart is allowed to join Sheldon, Leonard, Howard, and Raj for the game. Raj, however, gets eliminated early so he joins the girls on their night out at the bar. Oh, and Leonard has decided to have the game involve Christmas characters so Santa Claus has been added to the chagrin of Sheldon. We find out why later on. I'll stop there and just say this was another great ep of "TBBT" especially when Sheldon sings a Christmas song. With all the verses. Oh, and wait till you see the ending! Really, all I'll say now is "The Santa Simulation" was one really hilarious holiday ep of this show...

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